/* 滚动容器 */
.scroll-viewport {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.scroll-wrapper {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
}

.absolute-box,
.absolute {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
